Calculating the torque multiplication that your axle gears provide is quite easy. jack39rdstr # 169783 04/02/10 02:03 PM. HVr0*u9$K;IG]&U&"x\s. [ July 26, 2022 ] Reversing Gears ~ Rescuing One's Own Derelict 1967 Pontiac GTO Builds and Examples [ July 24, 2022 ] . PDF Differential ID Chart - Summit Racing Equipment You bring the gumption. I'm running the wider blazer rear end . 1967 Pontiac GTO - Wheel-Size.com This ratio is 3.08, perfect for cruisin. In their day Pontiac and Olds rearends had a well-deserved reputation for toughness and reliability, that's why they were found under so many hot rods on the dragstrip and the street. But it's been so long I can't be certain. B-O-P axles also have identifying grooves traveling along each side of . Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip. I believe the width, outside axle flange to outside axle flange, is 64 inches. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's 3:08, 3:40, 3:73 70-81 4wd 6 lug reared 71- Newer 2wd trucks use a 5 on 5 lug pattern 71-76 Full Size Cars " "" "" ". Mopar Rear Axle. There are three different third-member castings, but all will install into any '57-'64 Pontiac/Olds housing. It is a little better than the Camaro 8.2 10 bolt. Mercury Capri/Bobcat, Monte Carlo, Regal, etc. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. While it still may take an investment in time to locate a good third-member core and housing for your gasser project, these components are still relatively plentiful and quite affordable. Accurate Differential Identification is the first and most important step in your differential repair, upgrade or overhaul project. 70-81 4wd 6 lug reared The1971-'72 Buick GS/Skylark and Olds Cutlass A-body 8.5 10 bolt did not have C-clip axles. Stop listening to your street rodder buddy and back away from the 9-inch. Many Ford 9-inch parts are made offshore; they have smaller bearings and smaller diameter gears requiring less material. Please select a rear end that matches your vehicle below.General Motors has a wide range of front and rear ends! Beginning with a new line of U.S.-made gearsets in desirable ratios, Fabcraft rekindled the flickering flame of the 9.3-inch. The simple cure when using wide tires with a stock-width rearend was to radius the fenders and let the tires hang out in the breeze. i.e. Vintage 1980 Yamaha Enticer Snowmobile Revival to Former Glory. * Pinion #s GM 40 13 == 67 K D. Pontiac Differential Codes Year Model Rear Ratio Tooth Count Std Code Posi Code 1970 Big Pontiac 2.56 41/16 UC VC 1970 Big Pontiac 2.73 41/15 UD VD 1970 Big Pontiac 2.93 41/14 UE VE 1970 Big Pontiac 3.23 42/13 UG VG 1970 Big Pontiac 3.42 41/12 UH VH 1970 Firebird 2.73 41/15 CRX CRY 1967 Pontiac GTO - Wheel & Tire Sizes, PCD, Offset and Rims specs | Wheel-Size.com. var I=new Image(1,1); I.src=u; Understanding Aluminum Heads and Spark Plugs, OK Go Needing/Getting ~ Its All In The Timing, An Online Magazine for DIY Hot Rod Builders. Buy in monthly payments with Affirm on orders over $50. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. The Pontiac/Oldsmobile 9.3-inch is your axle. var t=new Date(); 41/14. '72-73 Torino, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, '69 Chevrolet For some time, only a small handful of ratios were available in new gears. They're tough, right? If you noticed the axles are missing you would be correct. I used 5 long lag bolts to hold the end pieces of wood on which permitted me to add up to 1.5 of shims to each end. Prices and availability are subject . find the 1/2 ton size yoke on a dana 60. 6>"FlJz^l,*4&V0afw .a@z"PXdj}o`2/ OQs=`&qf aDK|/U32.)0i%q~P"BaLw.Y@`uwy#Do~vt*o~@$y-KZe]X3q'WWb2y)0`61"4@Q*`6k RPf\`H#@ ^M8-|&YxO-t Task Force width ranges at this time. gasoline (petrol) engine with displacement: 5690 cm3 / 347.2 cui, advertised power: 216 kW / 290 hp / 294 PS ( SAE ), torque: 509 Nm / 375 lb-ft, more data: 1957 Pontiac Chieftain Sedan Tri-Power Hydra-Matic (aut. GM 8.2" and 8.2" BOP Axle Parts, Gears, and Upgrades - Drivetrain Shop Source for tire and wheel application fitment data. In the '50s and '60s the search for high-performance parts usually meant a trip to the wrecking yard to rob components, engines, out of big, powerful cars of the dayChryslers, Fords, Cadillacs, Olds, Pontiacs, and W-Chevys were all used. Approximate rear end widths measured from backing All Pontiac Firebird 2nd-gen. Trans Am Coupe versions offered for the year 1977 with complete specs, performance and technical data in the catalogue of cars . The most common GM unit for the 1982 to 1992 Camaro is the Saginaw style 10 bolt Chevy differential. 3.08. The Dana rear end is a bolt in swap for the both the 8 3/8 and the 9 1/4, all rear ends can be had with the same size u joint yokes, vans are good place to. 1958-1970 Chevy Rear Differential code Identification : Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. This engine produces a maximum power of 142 PS (140 bhp - 104 kW) at 5200 rpm and a maximum torque of 230.0 Nm (169 lb.ft) at 5200 rpm. This number may be on the top, bottom, or either side of the axle shaft. Rear End Widths - - Back - - Home > Specs > Rear End Widths : Representative for comparison purposes only. On Gen1, the code is "hit" on the right side of the rear axle (passenger side) with the inscriptions facing the front of . Several features are common to most gassers. Will only work with bolt in style axles. The new 9.3-inch provided outstanding durability when subjected to abuse from all classes of race cars, including Top Fuel. Check here to see if your engine is correct for your year truck. may be different than pictured. rear width | Team Camaro Tech CK 15/35, S10, RV. A little history: In 1957, three important axles were introduced: Ford's 9-inch, Chrysler's 8.75-inch, and GM's 9.3-inch Hotchkiss-style axle for Pontiac and Oldsmobile. Once I had the wooden rear end made I attached the wheels to the small wood axle flanges with wood screws and large washers to stop the screws from pulling through the lug nut holes. 1990 to 1992: 7.625 inch ring gear, 28 spline axle. BOP, Pontiac, Each. function SiteStats_3379(){ But the components should at least be grounded in the era. Below matches. Factory Width. There is also a yellow stamp 10 22 which is the . '67 Mustang If you're building a period-correct car, especially a Gasser, they are undoubtedly the perfect rearend for today. '67 Lincoln, '69 Dodge There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. Rear end widths - El Camino Central Forum Chrome 10 Bolt Rear End Cover Fits Chevy Pontiac Oldsmobile10 Bolt Differential M&M CUSTOM. Ask Away! with Jeff Smith: 8.2 or 8.5 How to Identify GM 10-Bolt Rear Is a pontiac center section as olds rear ends of that era? Advance Design Trucks seem to be using rear '72 Cougar, '74 Pontiac, '49 Plymouth, '61 Chevrolet Impala 2D reg-duty / 4D med-duty 4-pinion. '69 Nova A: By casting numbers and date codes, along with other external characteristics, all of which are shown in the manual by Zach Davidson and Brad Duerst. And yet, all too often, a beautiful gasser built today is sitting on top of a Ford 9-inch axle. Professional technical support is available . 1958-1970 Full size rear Differential Identification - 348-409.com GU3 - 3.08's V6 gear ratio. Popular Tools & Look-Ups. All Rights Reserved. 1957 Pontiac Chieftain 2/4-Door Sedan full range specs With a maximum top speed of 112 mph (180 km/h), a curb weight of 2672 lbs (1212 kgs), the Fiero GT has a naturally-aspirated V 6 cylinder engine, Petrol motor. Pontiac Flathead Owners - Antique Automobile Club of America The S10 10bolt 7.5/7.625" rear end is a good choice for the light low to medium horsepower small block cars. For the do-it-yourselfer, Fabcraft offers a full-color manual with excellent tech info on the differential. In head/2 per cylinder. '71 Comet , '71- 72 Pinto, '39 -48 Chevrolet, '68 GTO The power is transmitted to the road by the rear . Axle Shaft, Rear, 1541H Alloy, 28 Spline, 29.875 in. 1957-58 are 29-spline and 1959-1964 are 31 spline. A: Extremely strong! GU2 - 2.73's Standard auto trans gear ratio. 5" for small cars 5" - 6" for intermediate Rear Axle Identification - venturestruckparts.com 66-69 axle does not include 64 65 . trailer We provide how-to and technical articles, vehicle and build features and examples, plus calculators and lookups that will help you get your ride from dream to driver. Items 18 0 obj<> endobj You must log in or register to reply here. . Yes the axles were special in that I wanted to use a 28 spline center section already had rather than buy a new 3rd member to suit the 31 spline axles that Speedway stocked. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. '72 Chrysler. '67 to '70 Mustang/Cougar 8 cyl. Technical - Pontiac/Olds Rearend TECHpost it here Lincoln Versailles, Regal with 10 bolt axle, S-10 P.U., 65-67 Nova. may be different than pictured. It may not display this or other websites correctly. candidate to replace the torque tube rear end or just get a better set of gears @`AWG^8J>4j|^Vk@oXq7@@/9ep Buick and Pontiac 10-bolt rear ends used flange-retained axles instead of the C-clip retained axles like those on Chevrolet rears. GM / Chevy - Differential Identification - www.RigidAxle.com AXLE DIFF 4X4 FRONT DIFF PARTS AXLE DIFF REAR END PARTS . PDF Pontiac Diff Codes - wildaboutcarsonline.com The 8.75-inch had slightly larger, 30-spline axleshafts compared to the P/O's 29-spline shafts; but by 1959, big 31-spline factory shafts were standard, and aftermarket shafts for the 9.3-inch eliminated any supposed shortcomings. My '64's measure 54.25". June 5, 2022 Posted by: Category: Uncategorized 0000004229 00000 n I used 5" long lag bolts to hold the end pieces of wood on which permitted me to add up to 1.5" of shims to each end. This method will work but the wheels are always trying to roll away and tip over making it very hard to check for clearance and be sure that your measurements are correct . . 0000006068 00000 n These rearends were the Hotchkiss style, which means the ring-and-pinion gears, along with the differential components, are housed in a removable carrier, making gear changes and axle replacement quick and easy. '70 Nova We'll work to keep you motivated and informed and with industry news, product information and reviews, event coverage, and well-curated articles and stories intended to inspire and educate. Housings with leaf springs were used under Pontiac and Olds in 1957 and Olds only in 1958-60; Pontiacs had coil . The final drive ratio is identified with 2 or 3 letters codes. Its role in drag racing was limited to primarily Stock, Super Stock, and Factory Experimental Fords. It has been my experience that the 66 up axle is longer. Rear axle flange to flange is supposedly wider than the 68-72 AND the 78-88 GM A and G body cars. I ordering the axles from Bears Performance who kept thier promise of delivery in about a week. Shop Full Width; Shop With Sidebar; . pontiac rear end width chart - akzenterprises.com Rear End Widths - Chevelle Stuff Quick question, I'm looking at a '50 Pontiac and was wondering if it had a torque-tube or a driveshaft. Like most american muscle cars of the Day the Pontiac GTO was a front engined rear wheel driven car. 5D med-duty 4-pinion. Compared side-by-side with the Chrysler, it boasted stronger gears and larger bearings. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. 1958-1970 Full size Chevy rear differential identification chart. 0000015097 00000 n /** * Error Protection API: WP_Paused_Extensions_Storage class * * @package * @since 5.2.0 */ /** * Core class used for storing paused extensions. The following list 0000002004 00000 n 1957-1964 Pontiac and Oldsmobile Rearends - Revival - MotorTrend This posi has 4 pinion gears, which makes it about 2 times as strong as the Chevy Eaton posi. The 8.75 (8 3/4) rear end LOADS FROM THE FRONT and IS THE ONLY REAR END THAT DOESN'T HAVE A REAR COVER. Contributing information were Bob Welch, J The housing came in a couple of weeks but without the axles. also note on the A4's (auto's) shifter console if the gear selector for 1 is missing. Check our the Chevy rear end gear ratio chart above to help you identify the correct gear to use. S10. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger 0 0000006915 00000 n SiteStats_3379(); Rear axle widths. Billet-steel yokes and carrier caps could be added to make the 9.3-inch nearly bomb-proof. startxref Casting # Year: Body: Size: Notes: 2070051: 1960 - 71: A . GM 10-bolt rear ends have four basic ratio choices: 2.73, 3.08, 3.42, and 3.73 . http://www.jalopyjournal.com/forum/showthread.php?t=128884, http://www.jalopyjournal.com/forum/showthread.php?t=38805, Upstate New York, watching my New Yorker Rust, http://www.jalopyjournal.com/forum/showthread.php?t=128884&page=2, http://www.jalopyjournal.com/forum/showthread.php?p=1450810#post1450810, (You must log in or sign up to reply here. to change without notice. '69 Javelin Six, '39 -48 Chevrolet The GM 8.2" axle is available in two configurations: The standard GM 8.2" version features an 8.2" diameter ring gear with 28 spline axle shafts that are held in place using c-clips. Interest in vintage drag racing is now approaching a rapid boil. Someone may correct me, but as I recall 1959 was the first year for the "Wide Track" Pontiac. For die-hard purists, it soon became a difficult proposition to build a worthy P/O 9.3-inch as aftermarket support subsided and the supply of virgin factory parts withered. Cylinders. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. 70 2wd 6 lug rear end 12 bolt Possible gear ratio's Detroit gear & axle : AB : 3.36 : No : Powerglide : Detroit gear & axle : AC : 4.11 : No : 3 speed, O.D . The 1967 GTO came in 3 speed Automatic and a 4 Speed manual. Snap On vs Daytona, Pittsburgh, ESCO, Husky, More. . Vehicles with Similar . '67 Mustang Six , '68 AMX i've seen that link about a hundred times now and it's kind of funny how the 73-77 GM A-body is not included. The intake valve size increased to 2.11" and the exhaust valve increased to 1.77"in size from the previous model. the versailles / granada rear ends from flange to flange is 58.5". Good third-member cores are also relatively easy to come by, as many are now being saved from recyclers by fellow enthusiasts. I'm not sure of the Wheel Stud *. I have a source for the axleshafts and the difference in the shafts shows this to be true, BUT doesn't show the diff center . Cars from all the traditional drag racing classes are being built and/or restored, but among the most popular of these period-correct builds are the cars riding high on solid front axles and sporting fenderwell headers: gassers. Other changes were made to the limited-slip carrier, but strength was not adversely affected. '72-75 Datsun Pickup But when it came to rearends, the overwhelming favorites were those our of '57-64 Pontiacs and Oldsmobiles. 1967 - 1969 Firebird 10 Bolt Axle Rear End, Posi Unit Ring and Pinion note 64 64 axle is same. I'm not sure of the Task Force width ranges at this time. All housings have strong, tapered axle tubes, come in numerous widths, and sport a variety of suspension brackets. In 1957, the Pontiac and Oldsmobile designs were combined and improved upon, producing a brand new 9.3-inch differential. '72 Cougar, '74 Pontiac '49 Plymouth, '61 Chevrolet Impala '65 Cadillac, '66 Buick Wildcat '66-67 Chevrolet Big Car, '72 Charger '69 Oldsmobile 88, '72 Chrysler of extensive information was contributed by R. Welch: Original Vehicles Dont Be That Guy, Reversing Gears ~ Rescuing Ones Own Derelict 1967 Pontiac GTO, How To Paint a Lace Roof on the Cheap Using Grandmas Curtains, Exploring an Antique Junkyard in the Hills of West Virginia, Engine, Transmission, Chassis Swap Donor Vehicle Look-Up, Early Ford Beam Axle Identification and Dimensions, How To Box-In a Differential / Solid Axle Rear-End Housing, How To Install aLimited Slip/Posi Unit in a GM 10 Bolt 8.5 Rear-end, How To Install Ring and Pinion Gears in a Ford 8.8 Rear-End, How To Rebuild a GM 10 Bolt Chevy 8.5 Rear End, How To Select Proper Rear-End / Differential Gear Ratio, Popular Automatic Transmission Dimensions, Popular Automatic Transmission Identification Chart, Engine / Transmission / Chassis Donor Search, Project Cars and Part Donor Cars For Sale. Post: rear end width chart (Topic#173541) greg pharr Contributor Posts: 897 Loc: North Mississippi Reg: 07-09-03. Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. "SPECIAL" CARS - 1938 Pontiac Special six. '64 1/2-'65 Mustang I actually had the axles in less than 4 days! 0000002277 00000 n Ford. So why did the Ford 9-inch become the premier differential of modern day hot rodding? L = Low - Zero to Negative Offset, Offset typically RWD (Rear . <<3d7f7a4e8421a74f9b85ec848848f3a1>]>> For a better experience, please enable JavaScript in your browser before proceeding. SKU: CE-GMG7887X. How to Build the Right Period-Correct Pontiac/Olds Rearend - MotorTrend Rusty but Rare 1976 Chevy K10 Sport Truck Revival! Add Width to compensate for drums as follows: 4" - 5" for small cars 5" - 6" for intermediate cars 6" - 8" for large cars, STOCK CENTER TO CENTER SPRING PERCH DISTANCE, Original VehiclesRear Suspension Width (Flange to Flange), Donor Vehicles Front and RearSuspension Width (Flange to Flange), Items I placed the order with Speedway motors in late July for my rear end housing and Currie axles. Posts: 8. ends with widths ranging from 58"- 62". 57" 71-74 V-8 xb```"~> !%1#XY} P A1@G7L/^nkX,i{j^vL@l ` n '66-67 Chevrolet Big Car, '72 Charger What is the width of a 1959 pontiac rear end? Measuring for the correct rear end width - Rodplans The high-volume production runs of Ford-9 inch components allow them to be relatively inexpensive. 1967 PONTIAC GTO Differential & Rear-End Components 0000007740 00000 n 68-74 Nova, 71-73 Mustang/Cougar, 84-95 Corvette, 60-61" 64-69 1/2 ton 2wd Chevy/ Some GMC Approximate rear end widths measured from backing plate to backing plate. Grand Prix. rear end width chart - Chevy Message Forum - Restoration and Repair Help '72 Cricket GM 7.75" (Australian - Some 3rd Gen Camaro/Firebirds) GM 8.0" - Rear - Late Model Midsize Truck Ring Gear Diameter: 7.75" Ring Gear Diameter: 8.0" Pinion Diameter / Spline: 27 Pinion Diameter / Spline: 1.781" / 27 Ring Gear Bolts: (8) Ring Gear Bolts: (10) 7/16"x20 LH Cover Bolts: 9 Cover Bolts: 10 Carrier Breaks: 2.77 / 3.27 Carrier Breaks: None Bigger engines introduced in both Oldsmobiles and Pontiacs for 1959 prompted the second generation of these rearends with 31-spline axles, which were reportedly 22 percent stronger than the previously used 29-spline shafts. '69 Oldsmobile 88, '72 Chrysler I have heard that a 1st gen Pontiac Firebird rear is wider, but I am not sure by how much. The other drawback is that you can only check for clearance at the height the jack stands are set to. The correct width for 59' & 60' is 63-1/4" I believe. Vehicle. 1985 to 1989: 7.625 inch ring gear, 26 spline axle. Ford Mustang Complete 9" Rear End Packages, GM G-body 78-87 Complete 9" Rear End Package, GM Chevy S10 82-04 Complete 9" Rear End Package, GM Tri 5 55-57 Chevy Complete 9" Rear End Package, GM X-Body Nova Complete Rear End Packages, Axle Bearings, Retainer Plates, & Wheel Studs, Bearings, Differential Parts, Seals, & Hardware, Master Cylinders, Caliper Kits, and Parts. Differential Identification | West Coast Differentials Learn more. sized GM Car, Malibu/Monte Carlo (82 up Metric Studs), 80 Granada & The 78-88 mid size GM cars use a 7.5" 10 bolt, which is about 58/5" wide. Another factor that made these rearends popular was the wide selection of factory gear ratios available, 2.56:1 through 4.30:1 while even lower drag racing cogs were available from aftermarket suppliers. GM / Chevy - Differential IdentificationShop by your differential. A turbocharger was added to the 301 to give the 1980 Trans Am an injection of performance. '70 Duster 6 lug rear end 12 bolt Coil spring set up Possible gear ratio's 3.70. some Chevy's Dana 44 or Dana 60 with leaf springs 6 lug, Gear ratio's Automotive Technical and Reference Information, Project Cars, Trucks and Salvage Vehicles For Sale. '66 Falcon, '69 Chevrolet '69 Firebird '67 Mustang V-8, '69 Firebird '72-73 Mazda, '28-40 Ford , '57 - 59 Ford In searching the web I found the following links that have a massive of information on rear end widths and wanted to share. On early street rods it wasn't unusual for the rear of the car to be jacked up so wider than stock tires could protrude several inches past the fenders, but then styles changed and the need for a narrower rearend that was reasonably strong led many hot rodders to the '57 Ford 9-inch, particularly those under wagons and Rancheros as they were the narrowest.